Dumbbell counterweight adjusting structure

Abstract

The utility model discloses a dumbbell weight adjusting structure which comprises a holding rod, storage boxes are symmetrically installed at the two ends of the holding rod, and weight stacks are arranged in the storage boxes. An adjusting mechanism is arranged in the storage box, and a limiting assembly is arranged at the bottom end of the holding rod. Wherein the adjusting mechanism comprises an end cover, the end cover is connected to the outer side of one end of the storage box in a sleeving mode, a supporting rod is installed on one side of the end cover, the supporting rod is sleeved with the weight stacks, and an annular air bag is connected to the outer side of one end of the supporting rod in a sleeving mode, so that the effect of rapidly mounting and dismounting the end cover can be achieved; therefore, the effect of rapidly deploying and fixing the weight stacks can be achieved, the weight stack assembling efficiency is greatly improved, the situation that in the actions such as pushing and lifting or weight lifting of a user, shaking of the dumbbell possibly causes a trainee to lose control over the dumbbell, then the body is unbalanced or falls down, and the risk of injury is increased is avoided, and the safety of the device during use is greatly improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to body -building apparatus technical field, concretely is a dumbbell weight adjustment structure. BACKGROUND

[0002] Dumbbell is a kind of simple equipment for enhancing muscle strength training, dumbbell is composed of grip bar, dumbbell piece and clamp, clamp is used to fasten dumbbell piece, ensure the fastening of dumbbell piece installed on grip bar.

[0003] The announcement number CN211513269U discloses a kind of dumbbell fastening mechanism, the connecting rod is fixed on the baffle by locking mechanism, so that dumbbell piece assembly is fixed between the clamping plate and the baffle, improve the fastening effect of dumbbell piece, ensure the firmness of dumbbell piece installed on grip bar, reduce the shaking of dumbbell piece, the uniformity of gap between adjacent two dumbbell pieces is guaranteed by the clamping block and the clamping groove on dumbbell piece, ensure that dumbbell piece is evenly placed, improve the stability when installing dumbbell piece;Rubber ring is used to buffer and protect dumbbell piece, ensure the safety when dumbbell piece contacts ground, but the following problems still exist in actual use process of the patent:

[0004] The connecting rod is fixed on the baffle by locking mechanism, so that dumbbell piece assembly is fixed between the clamping plate and the baffle, improve the fastening effect of dumbbell piece, ensure the firmness of dumbbell piece installed on grip bar, reduce the shaking of dumbbell piece, but the device needs to be continuously adjusted sleeve ring and fastening bolt when installing and fixing dumbbell piece, so that the device assembly efficiency is greatly reduced, cannot realize the effect of quick assembly and fixation, bring inconvenience to staff when using.

[0005] A kind of dumbbell weight adjustment structure is presented to solve the problems raised in the above. UTILITY MODEL CONTENTS

[0006] The utility model aims at providing a kind of dumbbell weight adjustment structure to solve the problems raised in the above background art, by locking mechanism, the connecting rod is fixed on the baffle, so that dumbbell piece assembly is fixed between the clamping plate and the baffle, improve the fastening effect of dumbbell piece, ensure the firmness of dumbbell piece installed on grip bar, reduce the shaking of dumbbell piece, but the device needs to be continuously adjusted sleeve ring and fastening bolt when installing and fixing dumbbell piece, so that the device assembly efficiency is greatly reduced, cannot realize the effect of quick assembly and fixation, bring inconvenience to staff when using.

[0007] To achieve the above object, the utility model provides the following technical scheme: a kind of dumbbell weight adjustment structure, including grip bar, the two ends of grip bar are symmetrically installed with storage box, and the inside of storage box is all provided with weight piece;Adjusting mechanism is provided in the inside of storage box, and the bottom of grip bar is provided with limit component;

[0008] The adjusting mechanism comprises an end cover, which is sleeved outside one end of the storage box, and a supporting rod is mounted on one side of the end cover, and the counterweight pieces are sleeved outside the supporting rod, and an annular air bag is sleeved outside one end of the supporting rod, and fixed boxes are symmetrically mounted inside two ends of the end cover, and a sliding rod is slidably connected inside the fixed boxes, and a sliding groove is symmetrically formed inside two ends of the end cover, and a sliding plate is mounted at one end of the sliding rod, and an insertion block is mounted on one side of the sliding plate, and the insertion block is inserted between the storage box, and fixed rods are symmetrically mounted inside the fixed boxes, and a sliding sleeve is sleeved outside the sliding rod, and the sliding sleeve is slidably connected outside the fixed rods, and a first contraction spring is sleeved outside the fixed rods.

[0009] Preferably, fixed tubes are symmetrically mounted inside the supporting rods, and sliding blocks are slidably connected inside the fixed tubes, and protruding blocks are mounted on one side of the sliding blocks, and grooves are symmetrically formed inside the counterweight pieces, and the protruding blocks are inserted between the grooves, and a second contraction spring is arranged inside the fixed tubes.

[0010] Preferably, the limiting assembly comprises a supporting frame arranged at the bottom end of the handle rod, fixed blocks are symmetrically mounted at the bottom end of the handle rod, an insertion plate is mounted at the bottom end of the fixed blocks, the insertion plate is inserted between the top end inside of the supporting frame, supporting columns are symmetrically mounted at the top of the supporting frame, sliding boxes are mounted at the top end of the supporting columns, a connecting box is mounted between the sliding boxes, square rods are slidably connected inside one end of the sliding boxes, insertion rods are symmetrically mounted at one end of the square rods, the insertion rods penetrate through the supporting frame and are slidably connected with the supporting frame, the insertion rods are inserted between the insertion plates, a worm is rotatably connected inside the connecting box, a double screw rod is rotatably connected between the connecting box and the sliding box, a worm wheel is mounted outside the center of the double screw rod, the worm is meshingly connected with the worm wheel, and the double screw rod is threadedly connected at two ends inside the square rods.

[0011] Preferably, a handle is mounted at one end of the end cover away from the supporting rod.

[0012] Preferably, a pull ring is mounted at one end of the sliding rod.

[0013] Preferably, an annular rubber pad is mounted inside the end cover.

[0014] Preferably, the sliding plate is slidably connected inside the sliding groove.

[0015] Compared with the prior art, the beneficial effects of the dumbbell weight adjusting structure are as follows: the weight plates needed are inserted into the outer side of the support rod by the staff, at this time the staff inserts the annular air bag into the outer side of the support rod, at this time the staff inserts the end cover and the storage box, the first contraction spring is reset, so that the plurality of insertion blocks and the storage box are inserted, the effect of quickly installing and dismounting the end cover is realized, the effect of quickly adjusting and fixing the weight plates is realized, the weight plate assembly efficiency is greatly improved, the user is prevented from losing control of the dumbbell in the action of lifting or weight lifting, the body imbalance or falling is caused, the risk of injury is increased, the safety of the device in use is greatly improved, compared with the fixing mode of a plurality of threaded structures in the prior art, the device is more convenient, the rotation of the worm drives the rotation of the worm wheel, the rotation of the worm wheel drives the rotation of the bidirectional screw rod, the rotation of the bidirectional screw rod drives the sliding of the square rod in the sliding box, so that the plurality of insertion rods and the insertion plate are inserted, the effect of quickly fixing the insertion plate is realized, the user can conveniently limit the device on the top of the support frame, so that the device as a whole is supported and limited, the risk caused by the random placement of the dumbbell is avoided, and the structure of the dumbbell quick limiting and supporting is used, so that the phenomenon that the dumbbell falls due to the impact of external force on the device is avoided.

[0016] 1. The weight plates needed are inserted into the outer side of the support rod by the staff, at this time the staff inserts the annular air bag into the outer side of the support rod, at this time the staff inserts the end cover and the storage box, the first contraction spring is reset, so that the plurality of insertion blocks and the storage box are inserted, the effect of quickly installing and dismounting the end cover is realized, the effect of quickly adjusting and fixing the weight plates is realized, the weight plate assembly efficiency is greatly improved, the user is prevented from losing control of the dumbbell in the action of lifting or weight lifting, the body imbalance or falling is caused, the risk of injury is increased, the safety of the device in use is greatly improved, compared with the fixing mode of a plurality of threaded structures in the prior art, the device is more convenient, the staff is brought convenience in use, when the staff inserts the weight plate into the outer side of the support rod, the inner side of the weight plate extrudes the protruding block, the protruding block slides in the fixed pipe together with the sliding block, the second contraction spring is quickly stretched, so that the protruding block and the groove are inserted, the effect of preliminarily limiting the weight plate is realized, the phenomenon that the weight plate accidentally falls in the assembly process of the user is avoided, so that the risk of injury of the user is further reduced;

[0017] 2, by the user with the support frame top between the plugboard and plug, when the user rotates the worm drive worm gear rotation, the rotation of the worm gear drive bidirectional screw rod rotation, the rotation of the bidirectional screw rod square rod sliding in the sliding box, at this time two groups of square rod outward extension, in turn, so that a plurality of plug rod and plugboard between the plug, so as to realize the effect of fastening plugboard, in turn, facilitate the user will be limited in the support frame on the top of the device, so as to be able to support the whole device, avoid dumbbell random put to increase the risk, and dumbbell fast limit support structure, so as to avoid the phenomenon of external force impact device caused by dumbbell drop, bring convenience to the user when using. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is the whole structure schematic diagram of the utility model;

[0019] Figure 2 It is the whole structure schematic diagram of the adjusting mechanism in the utility model;

[0020] Figure 3 It is the local enlarged structure schematic diagram of the adjusting mechanism in the utility model;

[0021] Figure 4 It is the local enlarged structure schematic diagram of the support rod in the utility model;

[0022] Figure 5 It is the enlarged structure schematic diagram of A part in the utility model;

[0023] Figure 6 It is the whole structure schematic diagram of the limiting assembly in the utility model.

[0024] In the drawing: 1, handle; 101, storage box; 102, counterweight piece; 2, adjusting mechanism; 201, end cover; 202, support rod; 203, annular air bag; 204, fixed box; 205, sliding rod; 206, sliding groove; 207, sliding plate; 208, plug block; 209, fixed rod; 210, sliding sleeve; 211, first contraction spring; 212, fixed tube; 213, sliding block; 214, protruding block; 215, recess; 216, second contraction spring; 217, handle; 218, pull ring; 219, annular rubber pad; 3, limiting assembly; 301, support frame; 302, fixed block; 303, plugboard; 304, support column; 305, sliding box; 306, connecting box; 307, square rod; 308, plug rod; 309, worm; 310, bidirectional screw rod; 311, worm gear. DETAILED DESCRIPTION

[0025] Clearly and completely describe the technical scheme in the embodiments of the utility model with the drawings in the embodiments of the utility model below, apparently, the described implementation regulations only a part of the embodiment of the utility model, but not all the embodiments, based on the embodiment in the utility model, all other embodiments that the person skilled in the art obtains without making creative labor belong to the range of protection of the utility model.

[0026] Please refer to Figures 1-6 The utility model provides technical scheme: a dumbbell weight adjustment structure, including the handlebar 1, the both ends symmetrical installation of handlebar 1 have the storage box 101, and the inside of storage box 101 all is provided with the weight plate 102;The inside of storage box 101 is provided with adjusting mechanism 2, and the bottom of handlebar 1 is provided with the limiting component 3;

[0027] Among them, adjusting mechanism 2 includes end cover 201, and end cover 201 sleeve joint in one end outside of storage box 101, and the one side of end cover 201 is installed with support rod 202, and the weight plate 102 all sleeve joint in support rod 202 outside, and the one end outside of support rod 202 all sleeve has annular air bag 203, and the both ends inside of end cover 201 symmetrical installation has fixed box 204, and the inside of fixed box 204 is slidably connected with slide rod 205, and the both ends inside of end cover 201 symmetrical are set with sliding slot 206, and the one end of slide rod 205 is installed with sliding plate 207, and sliding plate 207 is slidably connected in sliding slot 206 inside, and the one side of sliding plate 207 all is installed with insert block 208, and insert block 208 is inserted between storage box 101, and the inside of fixed box 204 is symmetrical installed with fixed rod 209, and the outside of slide rod 205 is sleeve joint with slide sleeve 210, and the both ends of slide sleeve 210 are slidably connected with fixed rod 209 outside, and the outside of fixed rod 209 is sleeve joint with first contraction spring 211, to the effect of quick installation and disassembly end cover 201 can be realized, in turn, the effect of quick deployment fixed weight plate 102 can be realized, greatly improve the weight plate 102 assembly efficiency, avoid the user in the action such as lifting or weight lifting, the shaking of dumbbell can cause the trainer to lose the control of dumbbell, in turn, cause body imbalance or fall, increase the risk of injury, greatly improve the safety when the device is used, compared with the prior art, the way of using multiple threaded structures is more convenient, bring convenience to staff when using;

[0028] The inside of the support rod 202 is symmetrically provided with a fixed tube 212, the inside of the fixed tube 212 is slidably connected with a sliding block 213, one side of the sliding block 213 is provided with a protruding block 214, the inner side of the counterweight piece 102 is symmetrically provided with a groove 215, the protruding block 214 is inserted between the groove 215, the inside of the fixed tube 212 is provided with a second contraction spring 216, when the staff inserts the counterweight piece 102 into the outside of the support rod 202, the inside of the counterweight piece 102 extrudes the protruding block 214, the protruding block 214 slides in the fixed tube 212 along with the sliding block 213, the second contraction spring 216 is contracted, when the position of the counterweight piece 102 is installed, the second contraction spring 216 is quickly stretched, the protruding block 214 is inserted between the groove 215, the preliminary limiting effect of the counterweight piece 102 is realized, the phenomenon that the counterweight piece 102 accidentally falls during the assembling process of the user is avoided, the risk that the user is injured is further reduced, the end cover 201 is provided with a handle 217 away from one end of the support rod 202, the handle 217 is designed, the end cover 201 is operated by the user, one end of the sliding rod 205 is provided with a pull ring 218, the pull ring 218 is designed, the sliding rod 205 is operated by the user, the inside of the end cover 201 is provided with an annular rubber pad 219, the annular rubber pad 219 is designed, the counterweight piece 102 is further extruded and limited, the characteristic that the rubber friction is large is used, the counterweight piece 102 is installed more stably.

[0029] The limiting component 3 comprises a support frame 301 arranged at the bottom end of the handle 1, and the bottom end of the handle 1 is symmetrically provided with a fixed block 302, and the bottom end of the fixed block 302 is provided with an insertion plate 303, and the insertion plate 303 is inserted between the top end of the support frame 301, and the top of the support frame 301 is symmetrically provided with a support column 304, and the top end of the support column 304 is provided with a sliding box 305, and the sliding box 305 is provided with a connecting box 306, and one end of the sliding box 305 is internally and slidably connected with a square rod 307, and one end of the square rod 307 is symmetrically provided with an insertion rod 308, and one end of the insertion rod 308 penetrates through the support frame 301 and is slidably connected with the support frame 301, and one end of the insertion rod 308 is inserted with the insertion plate 303, and the connecting box 306 is internally rotatably connected with a worm 309, and the connecting box 306 and the sliding box 305 are rotatably connected with a bidirectional screw 310, and the center of the bidirectional screw 310 is externally provided with a worm wheel 311, and the worm 309 and the worm wheel 311 are meshingly connected, and the two ends of the bidirectional screw 310 are internally and threadedly connected with the square rod 307, so that the insertion plate 303 can be quickly fixed, and the device can be conveniently positioned on the top of the support frame 301, so that the device can be supported and positioned, the risk of the dumbbell being randomly placed is avoided, the dumbbell is quickly positioned and supported, the phenomenon that the dumbbell is dropped due to external force collision with the device is avoided, and convenience is brought to the user during use.

[0030] Working principle: before using the dumbbell weight adjusting structure, the overall condition of the device needs to be checked to determine whether it can work normally, according to Figure 1 - Figure 6As shown, the staff will need to use the weight plate 102 is inserted into the outside of the support rod 202, at this time the staff will be inserted into the annular air bag 203 outside the support rod 202, at this time the staff will be inserted between the end cap 201 and the storage box 101, at this time one end of the support rod 202 and the inside of the storage box 101 between the plug, at this time the annular air bag 203 and the inside of the storage box 101 between the extrusion, and then by pulling the slide bar 205 inside the fixed box 204 sliding, at this time the slide bar 205 driven slide plate 207 inside the sliding groove 206, at this time the sleeve 210 outside the fixed rod 209 sliding, at this time the first contraction spring 211 contraction, by loosening the slide bar 205, and then through the reset of the first contraction spring 211, so that a plurality of plug 208 and the storage box 101 between the plug, and then can realize the effect of quickly installing and dismounting the end cap 201, so as to realize the effect of quickly deploying the fixed weight plate 102, greatly improve the efficiency of the weight plate 102 assembly, avoid the user in the action of lifting or weight lifting, dumbbell shaking may cause the trainer to lose control of the dumbbell, and then cause the body imbalance or fall, increase the risk of injury, greatly improve the safety of the device when using, compared with the prior art using a plurality of threaded structure fixed way more convenient, bring convenience to the staff when using, by the staff will be inserted into the outside of the weight plate 102 support rod 202, at this time the weight plate 102 inside the extrusion block 214, at this time the convex block 214 follow the slide block 213 inside the fixed tube 212 sliding, at this time the second contraction spring 216 contraction, when the weight plate 102 position installation is completed, at this time the second contraction spring 216 quickly stretched, and then can make the convex block 214 and the groove 215 between the plug, so as to realize the effect of preliminary limiting of the weight plate 102, avoid the user to assemble the weight plate 102 process weight plate 102 appear accidental falling phenomenon, thereby further reducing the risk of injury to the user, by the design of the handle 217, so as to facilitate the user to operate the end cap 201, by the design of the pull ring 218, so as to facilitate the user to operate the slide bar 205, by the design of the annular rubber pad 219, so as to be able to further extrusion limiting of the weight plate 102, the use of rubber friction force is larger characteristics, and then make the weight plate 102 installation is more stable;

[0031] By the user between the plug plate 303 and the support frame 301 top end plug, at this time the user rotates the worm 309 drive worm gear 311 rotation, worm gear 311 rotation drive bidirectional screw 310 rotation, bidirectional screw 310 rotation drive square rod 307 in the sliding box 305 inside sliding, at this time two groups of square rod 307 outwardly extending, in turn, enabling a plurality of plug rod 308 and plug plate 303 between the plug, so as to achieve the effect of quickly fixed plug plate 303, in turn, facilitate the user will be limited in the support frame 301 top device, so as to be able to support the whole device, avoid the dumbbell randomly placed to increase the risk, and dumbbell fast limiting support structure, so as to avoid the phenomenon of external force impact device caused by dumbbell falling, bring convenience to the user when using.

[0032] The existing technology through the handle 1 and the weight piece 102, the publication number CN211513269U discloses a dumbbell fastening mechanism, wherein the device used is not described too much herein.

[0033] Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments or make equivalent replacement to part of the technical features, and any modification, equivalent replacement or improvement made within the spirit and principles of the utility model shall be included in the protection scope of the utility model.

Claims

1. A dumbbell counterweight adjustment structure, comprising a grip bar (1), wherein storage boxes (101) are symmetrically installed at both ends of the grip bar (1), and counterweight plates (102) are provided inside each storage box (101); Its features are, Also includes: The storage box (101) is provided with an adjustment mechanism (2) inside, and a limit component (3) is provided at the bottom end of the handle (1); The adjustment mechanism (2) includes an end cap (201), which is sleeved on the outer side of one end of the storage box (101). A support rod (202) is installed on one side of the end cap (201), and counterweights (102) are all sleeved on the outer side of the support rod (202). An annular airbag (203) is sleeved on the outer side of one end of the support rod (202). Fixing boxes (204) are symmetrically installed inside both ends of the end cap (201), and sliding rods (205) are slidably connected inside the fixing boxes (204). The slide rail (206) is symmetrically provided inside, and a slide plate (207) is installed at one end of the slide rod (205). A plug (208) is installed on one side of the slide plate (207), and the plug (208) is inserted into the storage box (101). A fixing rod (209) is symmetrically installed inside the fixing box (204). A sliding sleeve (210) is sleeved on the outside of the slide rod (205), and the two ends of the sliding sleeve (210) are slidably connected to the outside of the fixing rod (209). A first retraction spring (211) is sleeved on the outside of the fixing rod (209).

2. The dumbbell counterweight adjustment structure according to claim 1, characterized in that: The support rod (202) is symmetrically equipped with fixing tubes (212), and a slider (213) is slidably connected inside the fixing tube (212). A protrusion (214) is installed on one side of the slider (213), and grooves (215) are symmetrically opened on the inner side of the counterweight plate (102). The protrusion (214) is inserted into the groove (215), and a second retraction spring (216) is provided inside the fixing tube (212).

3. The dumbbell counterweight adjustment structure according to claim 1, characterized in that: The limiting component (3) includes a support frame (301) disposed at the bottom end of the grip (1), and fixing blocks (302) are symmetrically installed on both sides of the bottom end of the grip (1). An insert plate (303) is installed at the bottom end of the fixing block (302), and the insert plate (303) is inserted into the top of the support frame (301). Support columns (304) are symmetrically installed on the top of the support frame (301), and sliding boxes (305) are installed at the top of the support columns (304). Connecting boxes (306) are installed between the sliding boxes (305), and a square rod (307) is slidably connected to one end of each sliding box (305). One end is symmetrically equipped with a plug rod (308), and one end of the plug rod (308) passes through the support frame (301) and is slidably connected to the support frame (301). One end of the plug rod (308) is inserted into the plug plate (303). A worm gear (309) is rotatably connected inside the connecting box (306). A double-ended screw (310) is rotatably connected between the connecting box (306) and the sliding box (305). A worm wheel (311) is installed on the outer side of the center of the double-ended screw (310). The worm gear (309) and the worm wheel (311) are meshed. Both ends of the double-ended screw (310) are threaded inside the square rod (307).

4. The dumbbell weight adjustment structure according to claim 1, characterized in that: A handle (217) is installed at the end of the end cap (201) away from the support rod (202).

5. The dumbbell counterweight adjustment structure according to claim 1, characterized in that: A pull ring (218) is installed at one end of the slide bar (205).

6. The dumbbell counterweight adjustment structure according to claim 1, characterized in that: An annular rubber pad (219) is installed on the inner side of the end cap (201).

7. The dumbbell counterweight adjustment structure according to claim 1, characterized in that: The slide plate (207) is slidably connected inside the slide groove (206).

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